[hal,wpilib] Add function to control "Radio" LED (#6073)

hal/src/main/native/sim/LEDs.cpp

@@ -0,0 +1,21 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+#include "hal/LEDs.h"
+
+#include "hal/simulation/RoboRioData.h"
+
+namespace hal::init {
+void InitializeLEDs() {}
+}  // namespace hal::init
+
+extern "C" {
+
+void HAL_SetRadioLEDState(HAL_RadioLEDState state, int32_t* status) {
+  HALSIM_SetRoboRioRadioLEDState(state);
+}
+HAL_RadioLEDState HAL_GetRadioLEDState(int32_t* status) {
+  return HALSIM_GetRoboRioRadioLEDState();
+}
+}  // extern "C"